کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470938 990338 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Degradation of the corrosion resistance of anodic oxide films through immersion in the anodising electrolyte
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Degradation of the corrosion resistance of anodic oxide films through immersion in the anodising electrolyte
چکیده انگلیسی

The deterioration of AA2024, AA6061 and AA7475 anodised in an environmentally-compliant tartaric acid/sulphuric acid electrolyte has been examined as a function of the immersion time in the electrolyte after termination of anodising. By transmission electron microscopy and scanning electron microscopy, degradation of the porous oxide film was qualitatively observed on AA2024. Electrochemical impedance spectroscopy revealed that AA2024 and AA7075 were more sensitive to prolonged immersion in the anodising electrolyte compared with AA6061, due to increased barrier layer thinning rates and increased susceptibility to localized corrosion. Salt spray tests confirmed the previous, indicating decay of anticorrosion performance for AA2024 and AA7075.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 52, Issue 7, July 2010, Pages 2219–2227
نویسندگان
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